Dynamics of particles with "key-lock" interactions

Details Dynamics of particles with "key-lock" interactions Dynamics of particles with "key-lock" interactions

2006-12-19

arxiv.org/abs/cond-mat/0612474v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 6 figures

Scientific paper

The dynamics of particles interacting by key-lock binding of attached biomolecules are studied theoretically. Examples of such systems include DNA-functionalized colloids as well as nanoparticles grafted with antibodies to cell membrane proteins. Depending on the coverage of the functional groups, we predict two distinct regimes separated by a percolation transition. In the localized regime at low coverage, the system exhibits a broad, power law like distribution of particle departure times. At higher coverage, there is an interplay between departure dynamics and particle diffusion. This interplay leads to a sharp increase of the departure times, a phenomenon qualitatively similar to aging in glassy systems. This diffusive regime is analogous to dispersive transport in disordered semiconductors: depending on the interaction parameters, the diffusion behavior ranges from standard diffusion to anomalous, subdiffusive behavior. The connection to recent experiments and implications for future studies are discussed.

Affiliated with

Also associated with

No associations

Rating

Dynamics of particles with "key-lock" interactions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dynamics of particles with "key-lock" interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of particles with "key-lock" interactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-314753